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Len [333]
3 years ago
12

What is the mass of 14.4 moles Fluorine? 0.379g 274.8 1.32 g 2.64g 547 g

Chemistry
2 answers:
liberstina [14]3 years ago
8 0

Answer:

D

Explanation: d

BartSMP [9]3 years ago
5 0

Answer:

547g

Hope i could help ;)

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When copper metal is added to nitric acid, the following reaction takes place
zlopas [31]

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The volume of NO₂ gas collected over water at 25.0 °C is 1.68 Liters.

Explanation:

Cu (s) + 4 HNO_3 (aq) \rightarrow Cu(NO_3)_2 (aq) + 2 H_2O (l) + 2 NO_2 (g)

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\frac{2}{1}\times 0.03163 mol=0.06326 mol of nitrogen dioxide gas

Moles of nitrogen dioxide gas = n = 0.06326 mol

Pressure of the gas = P

P = Total pressure - vapor pressure of water

P = 726 mmHg - 23.8 mmHg = 702.2 mmHg

P = 0.924 atm (1 atm = 760 mmHg)

Temperature of the gas = T = 25.0°C =298.15 K

Volume of the gas = V

PV=nRT

V=\frac{0.06326 mol\times 0.0821 atm L/mol K\times 298.15 K}{0.924 atm}

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The volume of NO₂ gas collected over water at 25.0 °C is 1.68 Liters.

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